SYNTHESIS OF SnS2-CNT NANOCOMPOSITES WITH EXIMIOUS VISIBLE-LIGHT-DRIVEN PHOTOCATALYTIC DEGRADATION OF TBA

摘要

SnS2-CNT nanocomposites were synthesized using simple cheap and less toxic SnCl2 as the tin (II) precursor. The prepared nanoparticles were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV Vis diffuse reflectance spectra (DRS). XRD and TEM results indicate that the prepared product is SnS2 nanoparticles and has a grain size of 30 nm in diameter. DRS show that SnS2-CNT possesses the absorption profile across the whole visible-light region. Furthermore, SnS2-CNT has a high photocatalytic activity for the decomposition of Rhodamine B under visible-light. It is proposed that both the strong visible-light absorption and the multiple exciton excitation contribute to the high visible-light photocatalytic activity.